Oar-lock.



No. 63U,245. Patented Aug. |,"l899.

C. LEIDING.

OAR LOCK.

UNlTED STATE PATENT OFFICE.,

HANSON E. SMITH,

OF S AME PLACE.

OAR-LOCK.

SPECIFICATION forming part of Letters Patent No. 630,:245, dated August 1, 1899.

Application filed February 20, 1899. Serial No. 706.167.- (No model.)

To all whom it may concern:

Be it known that I, CHARLES LEIDING, of Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Oar-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention contemplates certain new and useful improveinents in oar-looks.

The object of the invention is to provide an oar-lock which cannot possibly be removed while the oar is pointed toward the waterthat is, when pointed other than within or above the gunwale of the boat.

A further object is to provide an oar-lock of this character which will be extrem ely' simple in Construction, ineXpensive and free from all springs or other parts liable to readily get out of order; and a further objectis to provide an oar-lock of the kind stated which may be easily placed in and removed from position'.

The invention will be hereinafter fully set forth, and particularly pointed out in the claims.

In the accompanying drawlngs, Figure 1 is a View in side elevation. Fig. 2 is a View at right angles to Fig. 1, showing the oar-lock turned at right angles with its looking-arm opened. Fig. 3 is a central vertical sectional View. Fig. 4: is a top plan view of the lockplate.

Although this oar-lock possesses special advantages when applied to boats commonly known as gunwales, yet it is applicable to boats having outriggers.

Referring to the drawings, A designates a plate which is toi-med with a central raised portion a and a depending fiange a', which surrounds a hole (0 extended centrally through the raised portion. The upper surface of this raised portion forms a cam-that is, it is perfectly flat save at that portion faoing the boat, which is concaved, as at (6 This plate A in the form shown is designed to be Secured on the upper surface of the gunwale of a boat, being held by screws. In this way the stren gth of the gunwale at the point of strain during rowing is greatly increased.

B designates the oar-lock proper, which is of the usual shape, and from a fiange b in its under side projects a spindle b'. i This spindle has a spline (9 which when the lock is bei ing positioned is passed downwardly through a vertical groove b WVhen the lock is turned after insertion, the upper end of the spline contacts with the lower face of fiange a'.

C designates a looking-arin for holding an oar locked within the lock B. This arm is of approximately C shape and at its lower end is pivoted to lock B by means of a pivot D, passed through ears d' of arm C and a central ear d of lock B. The lower end of this arm when the latter is in its normal position is finsh with the fiange b, The arm C fits snug against one of the curved branches of the lock B and extends over the space between the ends of the two branches. At its extreme end is a small lug or fiange e, by grasping which the arm may be Conveniently moved. This looking-arm is always extended over the space between the branches of the lock proper when its lower end is in contact with the flat surface of plate A. Such contact is continnous when the oar is pointing outside of the boat; but when the lock is turned at right angles to the plate, with the lower end of arm O above the concavity therein, said arin may be turned on its pivot and thi-own back from across the space between the two curved members of the lock proper. In this position an oar may be inserted into or removed from the lock B. To remove an oar, it is necessary to throw the outer. end thereof within the boat or above the gunwale before the looking-arm can be withdrawn from above the branches of the lock proper. The lock must also be placed in the same position when an oar is to be inserted. When the lock is turned so as to move the .lower or in ner end of the lookingarm onto the fiat surface of the cam-like portion, the arin is at once thrown over the space between the branches of the lock and will be so held during the rowing operation. To remove the lock from the boat, it is only necessary to so turn it that the spline of the spindle will be in line with the groove, whereupon an upward pull will withdraw the lock.

It will be observed that as long as the blade 2 &30,245

of an oar is poin-ted outside of a boat the looking-arm cannot possibly be opened, that in this way the loss'of an oar from its lock is impossible, and that it is only when the blade end of an oar is moved within the boat or above the gunwale that the locking-arn can be thrown back out of the way.

It is obvious that my improved car-lock may be mounted on the outrigger' of a boat as well as on the gunwale.

Iclain as my invention- 1. An oar-Iock having two branches spaced apart at their upper ends, an arm normally projectin g over the space between said branches, and a cam for so holding said arm when the oar-lock is in Working position, as set forth'.

2. An oar-lock comprising a lock, proper, a pivoted arm carried by said lock and designed to project over the upper part thereof, and a. cam-like projection beneath said lock with which said arm is designed to engage, substantially as set forth.

3. The eombination With a plate having a cam -like surface, of an oar-lock axially inounted and movable above said surface, and a looking-arm carried by said oar-1ock and designed to engage said' cam-like surface, as set forth.

4:. The combination with a plate having an opening and au upper cam-like surface surrounding said opening, of a lock having a spindle fitted in said opening, and a pivoted curved arm carried by said lock, adjacent to said cani-like surface, said arm encompassing part of said lock, and having its lower end in contact with said cam-like surface, substantially as set forth.

5. The conbination with a plate having an opening, an upper cam-like surface and a lower fiange, of a lock having a spindle pro: vided With a spline, and a pivoted curved arm carried by said lock and having its lower 'end in contact with said cam-like surface,

said arm being cu rved throughout its length, substantially as set forth.

In testimony whereof I have signed this specificaton in the presence of two subscribing witnesses.

CIIAS. LEI DIN G.

VVitnesses:

JAMES P. SMITH, O. M. LAUERMANN. 

